poulson



(No Model.) 2 Sheets-Sheet 1.

N. POULSON.

BLOWER ALND HEAT REGULATOR.

Patented Dec. 23,1884.

(No Model.) 2 Sheets-Sheet 2.

N. POULSON.

BLOWER AND HEAT REGULATOR.

No. 309,799. Patented Dec. 23, 1884.

Nrre

FFICE.

NIELS POULSON, OF BROOKLYN, NEIV YORK.

BLOWER AND HEAT REGULATOR.

SPECIFICATION forming part of Letters Patent No. 309,799, dated December23, 1884.

Application filed March 12, 1884.

To all whom it may concern.-

Be it known that I, NIELs PoULsoN, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Blowers andHeat-Regulators; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled inthe art to which it appertains to make and use thesame.

My invention consists of a folding combined blower and heat-regulatorconstructed on the lazy-tongs principle, the blower being combined witha lever or levers in such a manner that when properly attached to afire-place frame or mantel it will be counterbalanced by s the saidlever or levers, and so guided thereby in unfolding that it may projectat various angles to act as a heat regulator or screen, or shut downclose against the fireplace frame to act as a blower.

In order that my invention may be clearly understood, I have illustratedin the annexed drawings, and will proceed to describe,a practical formthereof.

Figure 1 is a front elevation of a fire-place provided with my improvedblower and heatregulator. Fig. 2 is a cross-section thereof, theposition of the blower when acting as a. heat regulator or screen orwhen folded up and out of service being indicated by dotted lines. Fig.3 is a cross-section, on a larger scale, of the combined blower andheat-regulator. Fig. 4 is a vertical cross-section of the fire-place andblower, showing a link for connecting one of the intermediateplatcs ofthe blower to the fire-place frame.

The same letters of reference indicate identical parts in all thefigures.

The body of the blower illustrated consists of a number of sheet-metalplates, A, having end flanges, c 0, across their respective ends, whichflanges form, in conjunction with levers B and O, a pair of lazy-tongs,by which the plates of the blower may be folded up or unfolded. Theplates also have longitudinal flanges d and e, projecting in oppositedirections. hen the blower is wholly unfolded,

the flange d of one plate laps the flange e of the adjacent plate, andthe two flanges practically close the space between the two plates. Onearm of a lever, D, is pivoted to one end of one of the end flanges, c,of one of the (No model.)

plates A, and the corresponding arm of a similar lever, E, is pivoted tothe corresponding end of the other flange c of said plate. The otherarms of these levers D and E are suitably weighted. A plate or curtain,F, is pivotally suspended from the outer edge of the lowest plate A ofthe blower, and provided with a suitable handle, f.

In applying this blower to a fire-place, the top plate A is pivoted atits ends and near its outer edge, as at a, Fig. 2, to the frame of thefireplace, preferably in a suitable recess, G, therein, and the levers Dand E are also pivoted to said frame at such points, as at a, Fig. 2,that the plates A can be folded up close against each other in the saidrecess when not in use, and made to close the opening of theframe downto the grate-basket when wholly unfolded. The levers D and E projectinto the fire-place, and are so weighted as to counterbalance the platesand lazy-tongs, so that the blower may be projected and sustained atvarious angles, toact as a heat regulator or screen as well. The blowercan be readily ad justed to any required position by taking hold of thehandle on curtain-plate F. This pendent curtain is a little longer thanthe plates A, and should be made fully as wide, so that it will coverthe levers B and O as well as the plate A when the plate is folded upinto its recess. 1

This blower may be made quite plain, or ornamented to any degree .tocorrespond with the design of the fire-place. 0

One of the levers D and E may be omitted and replaced by a link, H, forconnecting one of the intermediate plates of the blower to thefire-place frame, as shown in Fig. 4.

The end flanges, c, of the plates, if too thin, may be re-enforccd bysuitable bars.

I claim as my invention 1. A folding blower composed of a number ofplates, a pair of lazy-tongs, and a counterbalancing-lever,substantially as before set forth.

2. A folding blower composed of a number of plates, a pair oflazy-tongs, a pendent curtain, and a counterbalancing-lever,substantially as before set forth.

In testimony whereof I affix my signature in presence of two witnesses.

"Witnesses: NIELS POULSON.

W. H. WrNsLow, F. A. WmsLow.

IOC

